Due to the exposure needle stab when medical infusion procedure or do blood tests-Wound by scalpel or sharp tools, scrapers, crashing into the cause of the bleeding.-Injury through the skin due to blood or canister of fluid of sick people were hit.-Blood, fluid of people with HIV to shoot on the traumatized skin, into the lining (eyes, nose, throat)-Other used needles were used there is blood (containing the HIV virus) crashed into, or people while on duty (public security, doctor, etc.), emergency traffic accidents, crime ...
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